Seagate HAWK 2XL Family User manual

HAWK 2XL Family:
ST32151N/W/WC
ST31051N/W/WC
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Installation Guide
ST32155N/W/WC
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ST31055N/W/WC

Contents
Preface ........................................................................... 1
Electromagnetic interference..................................... 1
Things you may need to install the drive................... 3
Before you begin ............................................................ 6
Drive configuration ......................................................... 10
Set drive ID ................................................................ 11
Select operating features........................................... 14
I/O line terminators..................................................... 15
Mounting the drive.......................................................... 22
Configuring the computer for your drive ........................ 32
DOS Installation ......................................................... 32
Formatting .................................................................. 35
Macintosh installation ................................................ 37
Unix installation.......................................................... 37
Troubleshooting.............................................................. 38
Product Repair................................................................ 40
Technical support services ............................................ 42
Hawk 2XL family product information ............................ 45
© 1996 Seagate Technology, Inc. All rights reserved
Publication Number: 77767490, Revision C
February 1996
Seagate®, Seagate Technology®and the Seagate logo are
registered trademarks of Seagate Technology, Inc. HawkTM,
SeaFAXTM, SeaFONETM, SeaTDDTM, and SeaBOARDTM, are
trademarks of Seagate Technology, Inc. Other product names
are registered trademarks or trademarks of their own.
Seagate reserves the right to change, without notice, product
offerings or specifications. No part of this publication may be
reproduced in any form without written permission of Seagate
Technology, Inc.

Hawk 2XL Family Installation Guide, Rev. C 1
___________________________________________________________________________________________________________________
Preface
This manual is organized to assist you in the installation and
operation of your Seagate Hawk 2XL Family disc drive. Family
models are listed in Hawk 2XL Family Product Information
section. It also provides information to aid in obtaining service
for the drive.
Before attempting any installation, please read through all
applicablesectionsofthisdocument, including all warningsand
cautions.
Caution. This equipment generates, uses, and can radiate
radiofrequency energy andif not installedand used
in accordance with these instructions, may cause
interference to radio communications.
"HDA"meanshead-discassembly."PCB"meansprintedcircuit
board.
Electromagnetic interference (EMI) considerations
The drive models described herein, as delivered, are designed
for system integration and installation into a suitable enclosure
prior to use. As such, the drive models described herein are
supplied as subassemblies and are not subject to Subpart J of
Part 15 of the FCC Rules and Regulations nor the Radio
Interference Regulations of the Canadian Department of Com-
munications.However, the unitshave been testedusing proper
shielding and grounding and found to be compliant with the
Class A limits of the FCC Rules and the Regulations of the
Canadian Department of Communications.

2 Hawk 2XL Family Installation Guide, Rev. C
_______________________________________________________________________________________________________________________
The physical design characteristics of the drive models de-
scribed herein, serve to minimize EMI radiation when installed
inanenclosurethatprovidesreasonableshielding.Assuch,the
drive(s) are capable of meeting the Class B limits of the FCC
Rules and the Regulations of the Canadian Department of
Communications.
Note. It is the end users' responsibility to assure that the drive
models described herein meet the appropriate EMI re-
quirements of their system. Shielded I/O cables may be
required if the enclosure does not provide adequate
shielding. If I/O cables are external to the enclosure,
shieldedcablesshouldbeused,withtheshieldsgrounded
to the enclosure or to the host controller, but not both.
The equipment is designed to provide reasonable protection
against such interference in a residential installation. However,
there is no guarantee that interference will not occur in a
particularinstallation.Ifthisequipmentdoes cause interference
to radio or television, which can be determined by turning the
equipment on and off, you are encouraged to try one or more of
the following corrective measures:
• Reorient the receiving antenna.
• Move the device to one side or the other of the radio or TV.
• Plug the computer into a different AC power outlet so that the
receiverandcomputerareondifferentbranchoutlets.Thatis,
circuits controlled by different circuit breakers.
If necessary you should consult your dealer or an experienced
radio/television technician for additional suggestions.

Hawk 2XL Family Installation Guide, Rev. C 3
_______________________________________________________________________________________________________________________
Youmay findhelpfulthefollowingbookletpreparedbytheFCC:
How to Identify and Resolve Radio-Television Interference
Problems . This booklet is available from the Superintendent of
Documents, US Government Printing Office, Washington, DC
20402. Refer to publication number 004-000-00345-4.
Things you may need to install the drive
• Adequate power from your computer power supply
Thisdrive requires 7.5watts during typical operation, and 6.0
wattswhenatidle(notreading,writingorseeking).Ifthisdrive
is an "add-on" make sure the computer power supply can
supply enough extra power for this drive's needs.
• An antistatic wrist strap
You will need this to reduce the possibility of damaging your
drive by static discharge.
• A #2 Phillips screwdriver
You will need this screwdriver to open your computer and to
insert the drive mounting screws.
• A Torx Size TX-08 driver tool
Ifyour drive has afrontpanel and you needtoinstall the drive
in a conversion frame kit, this tool will be needed.
• A bootable DOS system diskette for the PC
You will need this diskette, which should contain the DOS
systemfilesandtheprogramsFDISK.EXEandFORMAT.EXE
to partition and format your new hard drive.

4 Hawk 2XL Family Installation Guide, Rev. C
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• A SCSI* host adapter card for the PC
You may need this if your computer does not already have a
hard drive, if your present drive does not connect to a SCSI
host adapter, or if your present SCSI adapter card cannot
address a drive having the capacity the Hawk 2XL has.
The host adapter card should have instructions with it for
installing the card and assist in the installation of hard disc
drives that it supports.
• A 50-pin SCSI interface cable
You will need an interface cable if your computer does not
presently contain a SCSI hard drive.If you are adding a sec-
ond hard drive you must use an interface cable that has two
drive connectors, one on the end and one in the middle.See
Figure 1.
• AY-shaped drive power cable
You may need this if your computer does not have enough
power cables to supply power to your new hard drive. See
Figure 2.
• Mounting screws
You will need four 6-32 x 1/4 inch (6.4 mm) nonmetric screws
if you mount your drive directly into the drive bay.See Safety
Instructions for maximum screw length (see Figure 6).
• Drive mounting rails
You may need drive rails if your computer's drive bay is not
designed for direct mounting.
*ThesedrivemodelsusetheindustrystandardSCSIinterface.

Hawk 2XL Family Installation Guide, Rev. C 5
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• A frame kit
You will need a frame kit if you wish to mount a 3.5-inch
disc drive in a 5.25-inch drive bay.
• Extra configuration jumpers
A small plastic bag of two types of configuration jumpers is
included in drive package.
Figure 1. Two drive I/O cable
Figure 2. Y-shaped power cable

6 Hawk 2XL Family Installation Guide, Rev. C
__________________________________________________
Before you begin
Verify that the system is switched off but remains connected to
the main power before any installation is attempted.
Protect yourself, the drive, and your valuable programs and
data by reading the following cautions and warnings.
• Do not tamper with sealed top cover. Doing so voids your
warranty. The drive contains no user serviceable compo-
nents. See Product Repair section for more information.
• Visually inspect the shipping container for any obvious dam-
age.
• Verify all parts listed on shipping bill are received with the
equipment. Discrepancies or damage should be reported to
the shipping company.
• Inspect drive for possible shipping damage. All claims of this
type should be filed promptly with the transporter involved.
Save original packing materials to be used when reshipping.

Hawk 2XL Family Installation Guide, Rev. C 7
_______________________________________________________________________________________________________________________
• When transporting or shipping a drive or system, please
ensure that they are correctly packed in original Seagate
approved (or equivalent) container and shipped via an air-
ride carrier experienced in handling computer equipment.
• Do not unpack drive from its static shielded bag until you are
ready to install it in the system.
• Always handle the drive by the frame or casting.
• DonottouchPrintedCircuitBoard (PCB)ortheI/Oconnector
pins.
• Never apply pressure to the PCB or to the drive top cover.

8 Hawk 2XL Family Installation Guide, Rev. C
_______________________________________________________________________________________________________________________
Safety instructions
1. The disc drive is to be installed in a customer supplied
enclosure where the surrounding air does not exceed
50oC.
2. Four (4) 6-32 UNC-2A screws are required for installation.
Maximum screw length into side of drive is 0.15 inches (9/
64 inch) (3.81 mm). Maximum screw length into bottom is
0.20 in. (3/16 inch) (5.08 mm). Screw tightening torque is
6.0 lb-in (.675 NM) max with minimum thread engagement
of 0.12 in (1/8 inch) (3.00 mm).
3. ThepowerrequirementsareshownintheProductInforma-
tion section.
4. The power supply must satisfy the safety requirements for
SELV (Safety Extra Low Voltage) circuits.
5. Service is to be provided by trained Seagate service
personnel.
6. The incorporation of the disc drives listed in this guide into
a customer enclosure must meet the appropriate safety
requirements of the country in which it is used (e.g. UL
1950,CAN/CSA-C22.2No. 950-M89,DINVDE0805:1993
and EN60950: 1992 (IEC 950).
Note
Power must be off when connecting or disconnecting.

Hawk 2XL Family Installation Guide, Rev. C 9
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Sicherheitsanleitung
1. DäsGerätisteinEinbaugerät,vorgesehenfüreinemaximale
Umgebungstemperatur von 50oC.
2. ZurBefestigungderDrivewerden4Schraubenbenötigt(6-
32 UNC-2A). Die maximale Länge der Schrauben in der
unteren Seite des Chassis darf nicht mehr als 0.20 in (5.08
mm)betragen,dieinderSeiten0.15in(3.81mm).Maximalle
Schraubenanziehungvon6.0in-lb(.675NM)mitminimalem
Gewindeansperuch .12 in (3.00 mm).
3. DieVersorgungsspannungenwerdeninderSektionProdukt
Information gezeigt.
4. Die Versorgungsspannung muss SELV entsprechen.
5. Alle Arbeiten dürfen nur von ausgebildetem Seagate Serv-
ice-Personal durchgefürhrt werden.
6. Der Einbau des Drives muss den Anforderungen gemäss
DIN VDE 0805:1993 oder EN60950:1992 (IEC 950).
Vorsicht
Ánsehluss oder Entfernung oler Geräteverbindung nur bei
abgeschalteter Versorgungsspannung vornehmen.

10 Hawk 2XL Family Installation Guide, Rev. C
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Drive configuration
You can easily install your new Seagate disc drive as your first
ever hard drive, a replacement or as a second drive in a com-
puter system with an existing hard disc drive.
Installation involves the following steps:
• Drive configuration
• Mounting
• Informing the computer about your drive and how you want it
divided into partitions.
Before you physically mount your new disc drive in your com-
puter, you need to check the jumper plug settings that deter-
mine how the drive operates.Refer toTable 1 to find the Figure
specified applicable to your model drive for the particular con-
figuration functions of interest. Note that there are some con-
nector pins sticking out from the drive's printed circuit board
(PCB) that are labeled J2 and J6 (called "jumper plug head-
ers").
Model "W" additionally has J1-Auxiliary. Some systems may
have a cable connected to J1-Auxiliary that allows remote set-
ting of drive ID by switches or within the computer logic. It also
provides a connection to a remote drive activity LED. Jumpers
may be used on J1-Auxiliary.
Note the small jumper plugs connected across pairs of pins in
some places on these connectors (Figures 3a through 3e show
these jumper plugs enlarged).

Hawk 2XL Family Installation Guide, Rev. C 11
_______________________________________________________________________________________________________________________
Caution. Note that the jumper plugs used on J2 are shaped
differently and are smaller than those used on J6 or
J1-Auxiliary. Do not use J2 plugs on J6 or J1-Auxil-
iary as this will damage the internal contacts so they
will not subsequently stay on J2.
The presence or absence of these jumper plugs in various
places gives your drive information about how it is to operate in
your system specifically. Each figure shows a diagram of one
of these jumper headers, together with a brief description of
the operational feature each jumper position controls.
If this is your first hard drive, or if it replaces your existing hard
drive, you may not need to reposition any jumpers. However,
check the figures against your drive to see if it is configured as
it should be for your system.Consult your computer documen-
tation for information on configuring your drive. Your dealer is
the best source for help on this.Seagate also provides support
service for customers if your dealer can't help.
Set Drive ID
Look at Figures 3a, 3b or 3c. If your new drive will be the only
hard drive, assign it as "Drive ID 0," which requires no drive ID
jumpers installed.If your new drive is to be a second hard drive,
assign it as "Drive ID 1" by placing one of the extra jumper
plugs supplied in the enclosed plastic bag (one of the larger
plugs) on the "Drive ID 1" position, as shown in the figure. Do
not remove cover from area shown shaded in the figure.
Double check drive ID settings for your drive or drives.

12 Hawk 2XL Family Installation Guide, Rev. C
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Table 1. Drive configuration selections summary
Model --- Connector --- Appl.
Type Function J1 J6 J1-Aux J2 Figure
N Drive ID X,Y none 3a
N Drive Activity LED X,[3] none 3a
N Option select none X 3d
W Drive ID X,Y X,Y[5] 3b,3c[1]
W Drive Activity LED Y[3] 3b
W Option select X 3d
WC Drive ID Y[6] X,Y none 3b[4]
WC Drive Activity LED Y[3] Y[3] none 3b[4]
WC Option select:
Delayed Mtr Start Y[2] none X 3e
Enable Mtr Start Y[2] none X 3e
Write Protect none X 3e
Parity Disable none X 3e

Hawk 2XL Family Installation Guide, Rev. C 13
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("X" means the function selection can be made with jumpers on
that connector;
"Y" means the signal is available to host through that connec-
tor).
Notes[ ] for Table 1:
[1] Use either J6 or J1-Aux, but not both.
[2] I/O connector J1 plugs directly into host. No jumper can be
installed on J1. The host supplies the logic state of these
function signals; causing the selection of these functions.
[3] The host can drive a remotely located Drive Activity LED
using this signal.
[4] Use either J1 or J6, but not both.
[5] Jumper plugs can be used on J1-Auxiliary pins 1-2, 3-4, 5-
6 and 7-8 to set drive ID if desired, but usually a connector/
cable is plugged to J1-Auxiliary to run these signals to the
host for remote ID selection.
[6] The host selects drive ID through J1.

14 Hawk 2XL Family Installation Guide, Rev. C
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Select Operating Features
If your new drive replaces an existing drive, you must set up
the new drive to operate as the old drive did. Check the docu-
mentation for your old drive to see how the drive was set to
operate. Look at Figure 3d or 3e. Normally, you should leave
off the "Delay Motor Start", "Enable Motor Start," "Write Pro-
tect", "Parity Disable" and "Term power to SCSI Bus" jumpers.
A jumper on means the feature is enabled, except for "Parity
Disable," where a jumper on means that parity checking is dis-
abled. Only "Terminator Enable" and "Term Power from drive"
jumper positions should have a jumper on ("N" and "W" mod-
elsonly).Do notremovethese two defaultjumpersoradd jump-
ers to any of the other jumper positions mentioned above un-
less yourcomputer systemdocumentation indicates otherwise.
The factory installed default settings are generally always cor-
rect.

Hawk 2XL Family Installation Guide, Rev. C 15
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Drive model "WC" plugs directly into a bulkhead or PCB
mounted connector. Systems using these drives have made
provisions for terminators and selecting most options, so only
"Write Protect" and "Parity Disable" options (on J2) must be
considered for possible setting by a person installing a replace-
ment drive (usually no change is needed).Most systems using
"WC" model drives use drives that have unique drive internal
control firmware, so "off the distributor shelf" drives probably
willnot work in theseinstallations.Firmwarecannot be changed
on these drives.If you are upgrading by installing an additional
drive, consult the system documentation or system purchase
source for help in setting up drive ID, options and getting termi-
nation correct.
I/O line terminators
The SCSI I/O lines must be "terminated" at the drive connected
to the end of the cable.If your new drive is a model "N" or "W"
and is to be connected at the end of the cable, a jumper plug
should be installed on J2 (one of the smaller plugs) at the loca-
tion shown in Figure 3d where it says "Terminator Enable."
On J2, the "Terminator Power" (TP) jumper should be left in the
"Term. Power From Drive" position, unless otherwise directed
by your computer documentation.

16 Hawk 2XL Family Installation Guide, Rev. C
_______________________________________________________________________________________________________________________
If your drive is to be connected at the cable connector that is
not at the end of the cable (it is a second hard drive for your
system),the"Terminator Enable"jumpershouldnot be installed.
Remove and store the jumper if there is one on the "Terminator
Enable" position.
If installing a "WC" model drive see system documentation.
"WC" drives have no terminators, nor do they furnish termina-
tor power to the I/O bus.Terminators are in the Host system.

A2A1A0
SCSI ID = 0 (default)
Jumper Plug
(enlarged to
show detail) Pin 1
PCB
J6
Drive
Front
SCSI ID = 1
SCSI ID = 2
SCSI ID = 3
SCSI ID = 4
SCSI ID = 5
SCSI ID = 6
SCSI ID = 7
Remote LED
Do not remove
cover or install
any jumpers
R
E
S
L
E
D
R
E
S
Reserved
1211
Drive Activity
LED
CATH
Hawk 2XL Family Installation Guide, Rev. C 17
_______________________________________________________________________________________________________________________
Figure 3a. Model "N" drive ID Select and LED
connection
N drives

SCSI ID = 0 (default)
Jumper Plug
(enlarged to
show detail)
J6
Drive
Front
Pin 1
Reserved
A2A1A0
Shipped with cover installed.
Do not install jumpers; 
retain cover unless 20 pin 
plug is installed.
1197531
Drive Activity LED
Optional connections to 
switching circuits in host 
equipment to establish 
drive ID.
Dashed area is optional host circuitry (external to the drive) connected to 
host supplied optional usage plug. Do not connect anything to pins 13-20.
+5V
Host 
Alternate
Usage Plug:
Reserved Pins
8642
Ground
A3
SCSI ID = 1
SCSI ID = 2
SCSI ID = 3
SCSI ID = 4
SCSI ID = 5
SCSI ID = 6
SCSI ID = 7
SCSI ID = 8
SCSI ID = 9
SCSI ID = 10
SCSI ID = 11
SCSI ID = 12
SCSI ID = 13
SCSI ID = 14
SCSI ID = 15
PCB
PCB
18 Hawk 2XL Family Installation Guide, Rev. C
_______________________________________________________________________________________________________________________
Figure 3b. Model "W" and "WC" drive ID select and
LED connection
W/WC drive